plugin_proxy: enable event_type specification for proxy plugins (4.2 Backport)#11241

jmccormick7 wants to merge 4 commits intofluent:4.2fluent/fluent-bit:4.2from

jmccormick7:enable-go-metric-plugins-4.2-backportjmccormick7/fluent-bit:enable-go-metric-plugins-4.2-backportCopy head branch name to clipboard